Wireless Charging ICs
Products (4)
BQ51013CQWRHLRQ1 - 5W WPC 1.3 Wireless Power Receiver | Texas Instruments
The Texas Instruments BQ51013CQWRHLRQ1 is an automotive-qualified, fully integrated wireless power receiver IC compliant with the Wireless Power Consortium (WPC) Qi v1.3 protocol, housed in a 20-pin VQFN-HR (RHL) package measuring 3.5 mm x 4.5 mm. It delivers up to 5 W of output power on its secondary side, integrating AC-to-DC rectification, digital control, and Foreign Object Detection (FOD) on a single die, and is qualified to the AEC-Q100 standard for automotive applications. The device operates across an input voltage window that supports the Qi coil interface and produces a regulated output suitable for direct battery charging or downstream power rails. A wireless power receiver (sometimes called a Qi receiver or inductive charging Rx) is a specialised power management IC that converts the AC voltage induced in a receiver coil by a wireless charging transmitter into a stable DC output voltage. Receivers sit at the bottom of the power management hierarchy as application-specific PMICs, distinct from general-purpose LDOs, buck converters, and battery chargers. Modern WPC-compliant receivers such as BQ51013C-Q1 also handle the bi-directional Qi communication protocol used by the transmitter to control power transfer, run object detection, and negotiate foreign objects in the magnetic field. Key features include integrated low-loss synchronous rectification, dynamic rectifier clamp voltage adjustment for foreign object detection (FOD), adaptive communication modulation, and a programmable output voltage up to roughly 5 V. The device supports resonant frequency tuning, over-temperature protection, and an adjustable end-of-charge behaviour. Its 3.5 mm x 4.5 mm 20-pin VQFN-HR (RHL) footprint with a thermal pad enables compact PCB integration in space-constrained automotive cabin and console modules. The BQ51013CQWRHLRQ1 uses TI's mixed-signal CMOS architecture, combining a high-efficiency rectifier, a digital state machine that speaks Qi v1.3, and an adaptive comm-link receiver for load modulation. FOD is implemented by comparing transmitted and received power and using a Qi-defined reference to flag metallic foreign objects in the magnetic field before they heat up. Typical applications include automotive Qi wireless charging pads, in-cabin phone charging trays, eMobility accessories, and Qi-certified accessories for infotainment systems. The wide operating range also suits industrial Qi charging cradles and medical device charging bases that demand a regulated, safe power rail. When designing with the BQ51013CQWRHLRQ1, observe the LC tank tuning guidance in the datasheet to align the receiver coil inductance with the Qi specification; the matching network on the output is the single most important factor in achieving a clean 5 V output at full load. Also account for thermal dissipation on the RHL exposed pad - a 4-layer PCB with copper thermal vias is recommended at 5 W continuous output. This page synthesises distributor pricing, drop-in same-brand variants, cross-brand Qi receiver alternatives, and design notes not found verbatim in the manufacturer datasheet.
MWCT1101CLH - 5W Single-Coil Wireless Charging Tx PMIC
The NXP MWCT1101CLH is a 5W, single-coil, 5V-input, premium wireless charging transmitter PMIC housed in a 64-pin LQFP (10x10 mm) package, optimized for WPC Qi-compliant transmitter designs that demand a small BOM, low standby power, and Qi interoperability. The device integrates a digital controller, full-bridge inverter driver, current/voltage sensing, and foreign object detection (FOD) on a single die, providing complete controller functionality for implementing a wireless charging transmitter solution. A wireless charging transmitter PMIC belongs to the broader wireless-power transfer (WPT) product family, sitting hierarchically under power management ICs and specialized PMICs. These devices drive a transmitter coil with a regulated AC waveform; power-transfer efficiency, foreign-object detection, and Qi protocol compliance are the headline concerns. The MWCT1101CLH targets the consumer 5W Qi baseline (Baseline Power Profile, BPP, equivalent to ~5V at up to 1A through the LC tank at resonance). Key features include single-coil support (WPC A5/A11/A12/A15 coil topologies), Qi interoperability via NXP's firmware library, integrated digital demodulation, adaptive foreign-object detection, and adaptive dead-time control to maximize efficiency across load range. The device supports 5V typical input (e.g., USB or 5V rail) and produces the AC coil current required for a 5W transmitter stage. A UART/I2C peripheral interface allows a host MCU to update firmware, query status, and run diagnostics, while firmware resides in external flash. Architecturally, the MWCT1101CLH embeds an on-chip digital state machine plus dedicated analog front-end for current sensing, voltage sensing, and FOD; this mixed-signal architecture simplifies layout versus discrete implementations. The integrated gate drivers for the full-bridge (typically N-MOSFET half-bridge pair) reduce external part count and ease EMI compliance. Typical applications include smartphone wireless charging pads, gaming-mouse and earbud-case wireless charging stands, and embedded furniture charging surfaces; the small LQFP-64 footprint and low-BOM external count also make it attractive for medical and industrial 5W charging cradles. NXP's reference designs emphasize easy Bluetooth/Wi-Fi coexistence by tuning switching frequency and dithering to reduce EMI coupling. When designing with the MWCT1101CLH, follow NXP's reference PCB layout closely: keep the coil-to-tank capacitor loop area minimal, provide adequate ground pour around the device, and ensure the host MCU firmware is built against NXP's latest Qi library to maintain interoperability with Qi-certified receivers. This page synthesizes distributor pricing, pin-compatible firmware-compatible drop-in alternatives, and practical design notes beyond the bare manufacturer datasheet.
NY7501-1/MB95F012K - Wireless Charging Tx MCU Module | Newyea
The Newyea NY7501-1/MB95F012K is a multi-chip module that pairs a wireless charging transmitter IC (NY7501-1) with an 8-bit F2MC-8FX family microcontroller (MB95F012K, originally from Fujitsu Semiconductor and now carried by Cypress/Infineon). It is supplied as a Newyea-branded reference design module intended for Qi-compliant or proprietary inductive wireless charging transmitter (Tx) applications such as charging pads, in-car wireless chargers, and industrial contactless power modules. The integrated MB95F012K MCU provides the control logic, PWM generation for the TX coil drive, foreign object detection (FOD) algorithm execution, and communication handling, while the NY7501-1 analog front end drives the LC tank and monitors the resonant loop. Background: A wireless charging transmitter is a power-electronics sub-system that energizes a transmitting coil to induce power into a receiver (Rx) coil. Wireless charging transmitter modules typically integrate (a) a half-bridge or full-bridge power stage driving an LC tank at the Qi band of 100-205 kHz, (b) a current/voltage sense path for communication demodulation and FOD, and (c) an MCU for protocol stack, PID loop, and host I/O. The MB95F012K belongs to the F2MC-8FX family of 8-bit proprietary microcontrollers from Fujitsu, designed for low-power embedded control with on-chip ADC, timers, and PWM. Newyea is a Chinese wireless-power module house that re-packages these ICs as a turn-key solution. Key features include integrated Qi-band resonant driver, on-board F2MC-8FX MCU, built-in foreign object detection support, and serial/UART host interface. Specific electrical limits such as input voltage range, output power rating, coil drive frequency, and pin/package information are not published in the public sources reviewed. Typical applications include Qi-compliant 5W/10W wireless charging pads, automotive in-cabin wireless chargers, and industrial contactless power modules. The pairing of a dedicated Tx analog IC with a programmable MCU allows designers to customize FOD thresholds, modulation depth, and LED/User feedback behaviors. When designing with this module, validate the published Qi certification against the target receiver and confirm the host MCU firmware interface. Because Newyea is the re-seller and not the original silicon vendor for the embedded ICs, long-term supply should be confirmed with Newyea directly.
SGD5020 - Wireless Charging Transmitter IC | SOP-8 | Sigma
The Sigma SGD5020 is a wireless charging transmitter controller IC that integrates the wireless power transfer protocol stack, PWM modulation, and FOD (Foreign Object Detection) into a single SOP-8 surface-mount package. The Verified Web Data attributes the part to wireless charging transmitter chips, with a surface-mount SOP-8 outline and an original-manufacturer (Sigma) source. The aluminium supplier listings and Sigma product catalogue place this part in Sigma's wireless-power portfolio, alongside the Sigma tooth-brush wireless-charging reference design. A wireless charging transmitter controller is a specialized power-management IC that converts input DC into a regulated AC drive signal across a transmitter coil, manages the Qi (or proprietary) communication protocol with the receiver, and dynamically adjusts TX power to maintain efficient energy transfer while protecting the system from metallic foreign objects. The transmitter IC sits inside a layered power-electronics hierarchy: wireless-charging transmitter -> inductive power controller -> power management IC -> semiconductor. Within a charger, the transmitter is fed by a DC/DC front-end and is paired with a receiver IC at the load. Key datasheet-attributable features include an integrated wireless-charging communication protocol, support for foreign object detection (FOD) to protect against overheated metallic debris, low standby current for sleep-mode efficiency, broad input-voltage tolerance suitable for USB and adapter-fed sources, and an SOP-8 surface-mount package that enables compact charging-pad designs. The Sigma product page emphasises high integration and fine overall design with small package size, both critical for toothbrush and small-appliance form factors. The architecture combines an ARM/microcontroller-class digital core with on-chip analog front-ends for coil-current sensing, bridge-driver timing, and demodulation of the receiver-load-modulated communication. By absorbing the protocol, modulation, and FOD logic into one IC, the design eliminates the discrete microcontroller + op-amp + FET stack traditionally required for Qi transmitters. Typical applications include electric-toothbrush wireless chargers (Sigma's flagship reference), smartphone Qi-compliant charging pads, wearable-device charging cradles, low-power IoT inductive chargers, and personal-care electronics such as electric shavers and facial-cleansing brushes. The wireless-charging transmitter IC is most commonly deployed in any consumer product that needs cable-free, sealed-unit (IP-rated) charging. Design consideration: a wireless charging transmitter design must account for coil Q-factor tuning, resonant-capacitor selection, and thermal management of the power stage; follow Sigma's reference layout for the SOP-8 thermal pad. This page aggregates verified distributor pricing, drop-in alternative guidance, and Sigma's wireless-charging reference-design patterns into a single engineering resource.